2006 SUZUKI SX4 Transmission valve body

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CAUTION!
After attaching oil pressure gauge, check that no fluid leakage exists.

4) Depress foot brake fully, run engine at idle and stall then check fluid pressure in “D” or “R” range.
CAUTION!
• Do not continue running engine at stall speed longer than 5 seconds.
• After performing line pressure test, be sure to leave engine running at idle for longer than one
minute before performing another line pressure test.

Automatic transaxle line pressure
Troubleshooting
“P” Range TestS6RW0D5104016
1) Stop vehicle on a slope of 5 degrees or more, shift select lever to “P” range and at the same time apply parking
brake.
2) After stopping engine, depress brake pedal and release parking brake.
3) Then, release brake pedal gradually and check that vehicle remains stationary.
4) Depress brake pedal and shift select lever to “N” range.
5) Then, release brake pedal gradually and check that vehicle moves.
WARNING!
Before test, make sure no one is around vehicle or down on a slope and keep watchful for safety
during test.

Troubleshooting“D” range “R” range
At idle
speed3.7 – 4.1 kg/cm
2,
53 – 58psi5.9 – 6.8 kg/cm2,
84 – 97 psi
At stall
speed12.5 – 13.7 kg/cm
2,
178 – 195 psi16.5 – 19.0 kg/cm2,
235 – 270 psi
Condition Possible cause Correction / Reference Item
Higher than standard
level in each rangeMalfunction of pressure control solenoid
valve (Low line pressure)Inspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Lower than standard level
in each rangeMalfunction of pressure control solenoid
valve (Low line pressure)Inspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Clogged oil strainerReplace.
Faulty oil pumpInspect. If NG, replace.
Leakage from both “D” and “R” range
fluid pressure circuitOverhaul or replace valve body assembly.
Lower than standard level
only in “D” rangeLeakage from “D” range fluid pressure
circuitOverhaul or replace valve body assembly.
Lower than standard level
only in “R” rangeLeakage from “R” range fluid pressure
circuitOverhaul or replace valve body assembly.
Condition Possible cause Correction / Reference Item
Vehicle moves at “P”
range or remains
stationary at “N” rangeDefective parking lock pawl or springInspect. If NG, repair.

Downloaded from www.Manualslib.com manuals search engine 5A-38 Automatic Transmission/Transaxle:
Trouble Diagnosis 2
On-vehicle repair
Condition Possible cause Correction / Reference Item
Unable to run in all rangeFaulty valve body componentReplace valve body assembly.
Excessive shift shockEngine abnormal conditionInspect and repair engine.
Malfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of timing solenoid valve only
when N → D or 3 ↔ 4 shiftingInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Malfunction of brake light switch except
N → D or N → R shiftingInspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Malfunction of crankshaft position
sensorInspect referring to “Camshaft Position (CMP)
Sensor Inspection in Section 1C”. If NG,
replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Poor 1
→ 2 shiftMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Poor 2
→ 3 shiftMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-39
Poor 3 → 4 shiftMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of timing solenoid valveInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of “3” position switchInspect. If NG, replace.
Malfunction of engine coolant
temperature sensorInspect referring to “Engine Coolant
Temperature (ECT) Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Poor 4
→ 3 shiftMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of timing solenoid valveInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of “3” position off switchInspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Faulty valve body componentReplace valve body assembly.
Poor 3
→ 2 shiftMalfunction of shift solenoid valve-AInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Poor 2
→ 1 shiftMalfunction of shift solenoid valve-BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Incorrect shift pointEngine abnormal conditionInspect and repair engine.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine 5A-40 Automatic Transmission/Transaxle:
Trouble Diagnosis 3
Off-vehicle repairNon operate TCC (lock-
up) systemMalfunction of TCC solenoid valveInspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -BInspect. If NG, replace.
Malfunction of output shaft speed
sensor (VSS)Inspect. If NG, replace.
Malfunction of input shaft speed sensorInspect. If NG, replace.
Malfunction of transmission range
sensorInspect. If NG, replace.
Malfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Malfunction of pressure control solenoid
valveInspect. If NG, replace valve body assembly.
Malfunction of Accelerator pedal
position (APP) sensorInspect referring to “Accelerator Pedal Position
(APP) Sensor Assembly On-Vehicle Inspection
in Section 1C”. If NG, replace.
Malfunction of engine coolant
temperature sensorInspect referring to “Engine Coolant
Temperature (ECT) Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of brake light switchInspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Faulty valve body componentReplace valve body assembly.
Excessive “N”
→ “D” or
“N”
→ “R” time lagMalfunction of transmission fluid
temperature sensorInspect. If NG, replace.
Pressure control solenoid valve circuit
faultyInspect. If NG, replace valve body assembly.
Clogged oil strainerReplace.
Faulty valve body componentReplace valve body assembly. Condition Possible cause Correction / Reference Item
Condition Possible cause Correction / Reference Item
Unable to run in all rangeFaulty oil pumpInspect. If NG, replace.
Seized or broken planetary gearInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.
Damaged drive plateInspect. If NG, replace.
Faulty forward clutchInspect. If NG, replace.
Faulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Faulty torque converterReplace.
Excessive “N”
→ “D” shift
shockFaulty forward clutchInspect. If NG, replace.
Excessive “N”
→ “R” shift
shockFaulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Poor 1
→ 2 shift,
excessive shock or
slippageFaulty 2nd brakeInspect. If NG, replace.
Faulty one-way No.1 clutchInspect. If NG, replace.
Poor 2
→ 3 shift,
excessive shock or
slippageFaulty direct clutchInspect. If NG, replace.
Poor 3
↔ O/D shift,
excessive shock or
slippageFaulty forward clutchInspect. If NG, replace.
Faulty O/D and 2nd coast brakeInspect. If NG, replace.
Poor 3
→ 2 shift,
excessive shock or
slippageFaulty direct clutchInspect. If NG, replace.
Faulty one-way No.1 clutchInspect. If NG, replace.
Poor 2
→ 1 shift,
excessive shock or
slippageFaulty 2nd brakeInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-41
Transmission Warning Light Circuit Check – Light Remains “ON” at Ignition Switch ON (Non-Euro-
OBD Model)
S6RW0D5104054
Troubleshooting
Transmission Warning Light Circuit Check – Light Does Not Come “ON” at Ignition Switch ON (Non-
Euro-OBD Model)
S6RW0D5104055
TroubleshootingNon operate TCC (lock-
up) systemFaulty torque converterReplace.
Excessive “N”
→ “D” time
lagFaulty oil pumpInspect. If NG, replace.
Faulty forward clutchInspect. If NG, replace.
Faulty one-way No.2 clutchInspect. If NG, replace.
Leakage from “D” range fluid pressure
circuitOverhaul or replace valve body assembly.
Excessive “N”
→ “R” time
lagFaulty oil pumpInspect. If NG, replace.
Faulty reverse clutchInspect. If NG, replace.
Faulty 1st and reverse brakeInspect. If NG, replace.
Leakage from “R” range fluid pressure
circuitOverhaul or replace valve body assembly.
Poor engine brake in
downshift to “2” rangeFaulty O/D and 2nd coast brakeInspect. If NG, replace.
Poor engine brake in
downshift to “L” rangeFaulty 1st and reverse brakeInspect. If NG, replace. Condition Possible cause Correction / Reference Item
Step Action Yes No
1Diagnostic Trouble Code (DTC) Check
1) Check DTC referring to “DTC Check”.
Is there any DTC(s)?Perform DTC Flow to
repair and retry.Substitute a known-
good TCM and recheck.
If OK, substitute a
known-good
combination meter and
recheck.
Step Action Yes No
1Combination Meter Power Supply Check
1) Turn ignition switch ON.
Does other indicator / warning lights in combination meter
comes ON?Go to Step 2. Repair combination
meter power supply
circuit referring to
“Combination Meter
Circuit Diagram in
Section 9C”.
2 1) TCM power and ground circuit check referring to “TCM
Power and Ground Circuit Check”.
Is it in good condition?Go to Step 3. Repair or replace.
3DTC check
1) Check DTC referring to “DTC Check”.
Is there DTC U0073 or U0100?Go to applicable DTC
diag. flow.Go to Step 4.
4Combination Meter Function Check
1) Turn ignition switch ON.
Does A/T selector position indicator show correct select
lever position?Replace combination
meter.Substitute a known-
good TCM and recheck.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-47
DTC Troubleshooting
DTC P0712: Transmission Fluid Temperature Sensor Circuit LowS6RW0D5104022
Wiring Diagram
DTC Detecting Condition and Trouble AreaStep Action Yes No
1Was “A/T System Check” performed?Go to Step 2. Go to “A/T System
Check”.
2Inspect transmission fluid temperature sensor
1) Inspect transmission fluid temperature sensor referring
to “Transmission Fluid Temperature Sensor Inspection”.
Is result satisfactory?Go to Step 3 Replace transmission
fluid temperature
sensor.
3Check for transmission fluid temperature sensor circuit
1) Turn ignition switch to OFF position.
2) Disconnect valve body harness connector and TCM
connectors.
3) Check for proper connection to TCM at terminals “C06-
11” and “C06-12”. If connection is OK, check circuit for
open, short and high resistance for the following circuit.
• Between “C06-11” terminal of TCM connector and “LT
GRN” terminal of valve body harness connector.
• Between “C06-12” terminal of TCM connector and
“ORN” terminal of valve body harness connector.
Are they in good condition?Intermittent trouble or
faulty TCM. Check for
intermittent referring to
“Intermittent and Poor
Connection Inspection
in Section 00”. If OK,
substitute a known-
good TCM and recheck.Repair “LT GRN” and/or
“ORN” circuit.
5V
C06-11
C06-12
LT GRN
ORN
23
12 11
C06C07
[A]
1
I6RW0B510009-03
1. TCM 3. A/T
2. Transmission fluid temperature sensor [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
Transmission temperature sensor terminal voltage is less
than specified value for 5 minutes or more after starting
engine.• Transmission fluid temperature sensor or its circuit
malfunction
•TCM

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DTC P0741 / P0742: TCC Circuit Performance or Stuck OFF / TCC Circuit Stuck ONS6RW0D5104026
DTC Detecting Condition and Trouble Area
DTC P0741
DTC P0742
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTC in TCM memory.
3) Start engine and warm it up to normal operating temperature.
4) Shift select lever to “N” and “D” range for each 10 seconds.
5) Drive vehicle with 3rd or 4th gear in “D” range and lock-up ON for 2 seconds or longer referring to “Automatic Gear
Shift Table”.
6) Shift select lever to “3” range.
7) Drive vehicle with 2nd or 3rd gear in “3” range, 15 – 30% throttle opening and at vehicle speed of 25 – 40 km/h (16
– 25 mile/h) at least for 1 second.
8) Stop vehicle and turn ignition switch OFF.
9) Repeat Step 3) to 7) one time.
10) Stop vehicle and check DTC.7Check output shaft speed sensor (VSS) gears visually
1) Check output shaft speed sensor gears for the
followings.
• No damage in drive gear on differential case
• No damage in driven gear in output shaft speed
sensor
Is result satisfactory?Intermittent trouble or
faulty TCM.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
If OK, substitute a
known-good TCM and
recheck.Replace drive gear and/
or driven gear of output
shaft speed sensor. Step Action Yes No
DTC detecting condition Trouble area
When driving vehicle with 3rd or 4th gear in “D” range,
difference in revolution between engine and A/T input (input
shaft speed) is larger than specification although TCM
commanded TCC solenoid valve to turn ON.• Mechanical malfunction of TCC solenoid valve
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Torque converter clutch malfunction
DTC detecting condition Trouble area
When driving vehicle with 2nd, 3rd or 4th gear in “D” range,
difference in revolution between engine and A/T input (input
shaft speed) is smaller than specification although TCM
commanded TCC solenoid valve to turn OFF.• Mechanical malfunction of TCC solenoid valve
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Torque converter clutch malfunction

Downloaded from www.Manualslib.com manuals search engine 5A-54 Automatic Transmission/Transaxle:
DTC Troubleshooting
DTC P0751 / P0752 / P0756 / P0757: Shift Solenoid MalfunctionS6RW0D5104027
DTC P0751: Shift Solenoid-A (No.1) Performance or Stuck OFF
DTC P0752: Shift Solenoid-A (No.1) Stuck ON
DTC P0756: Shift Solenoid-B (No.2) Performance or Stuck OFF
DTC P0757: Shift Solenoid-B (No.2) Stuck ON
DTC Detecting Condition and Trouble Area
DTC P0751
DTC P0752
DTC P0756
DTC P0757Step Action Yes No
1Was “A/T System Check” performed?Go to Step 2. Go to “A/T System
Check”.
2 1) Check TCC solenoid valve for operation referring to
“Solenoid Valves (Shift Solenoid Valves and Timing
Solenoid Valve) Inspection”.
Are they in good condition?Clean fluid passage or
replace valve body
assembly.Replace TCC solenoid
valve.
DTC detecting condition Trouble area
3rd gear ratio is detected although TCM command is for 2nd
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-A
(No.1)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)
DTC detecting condition Trouble area
2nd gear ratio is detected although TCM command is for 3rd
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-A
(No.1)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)
DTC detecting condition Trouble area
3rd gear ratio is detected although TCM command is for 4th
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-B
(No.2)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)
DTC detecting condition Trouble area
4th gear ratio is detected although TCM command is for 3rd
gear while vehicle running at 20 km/h (12 mile/h) or more in
“D” range after engine being warmed up.• Mechanical malfunction of shift solenoid valve-B
(No.2)
• Malfunction of valve body assembly
• Fluid passage clogged or leaking
• Mechanical malfunction of automatic transaxle
(clutch, brake or gear etc.)